Time in written form pervades our social existence. From the daily news, whether on the web or in print, to wall calendars in our homes or offices, which tell us what day it is; from personal watches or cellphones to public clocks, which tell us what hour it is; from small change in our purses or pockets to use-by dates on our groceries, which remind us when things were made; and from personal or recreational diaries to bus and train timetables, which tell us when we did or should do things, we are constantly made aware of time and its passing in the modern world. And because of the means by which we tell the time in these contexts, it is easy to fall into the trap of thinking that the ancient world did not have such persistent reminders as well. Yet archaeology and literature combine to tell us differently. In this chapter I wish to discuss aspects of this combination, focusing on time in written forms, on the collocation of the mechanisms of time and writing, and on the spatial setting in which these are found, all of which demonstrate a politicization of time in the late Republic and early Empire.